Hydrocarbon motor



Mar. 13, 1923.

L. M. WOOLSON HYDRUCARBQN momia Mar. l 3, 1923.

L. M. WOOLSON HYDRCARBON MOTOR 5 sheets-51190;

mica om, is, 11910 Patented Mar. 13, 1923.

UNITED STATES PATENT oFFicE.

LIONEL M. .WOOLSONJ OF DETROIT, MICHIGAN. ASSIGNOR TO PACKARD MOTOR CAR COMPANY, OF DETROIT. MICHIGAN. A CORPORATION OF MICHIGAN.

HYDROCARBON MOTOR.

Application tiled October 16, 1919.

Be it known that l, luoxili, M. Wooisox. a eitizen of the United States` and resident ot' Detroit. Wayne County. State otl Mirhigan. have invented rertain new` and useful lmprovements in I'lydrm'arbon Motors` ot' which the following is a speeilit'ation.

This invention relates to h vdroearhon motors and particularly to means for heating the mixture passing from the earburetor to the motor Cylinders.

Various means have been provided heretofore for heating the mixture of 'a h vdroearbon motor and in my earlier applieation. Serial No. 323.t2T.-tiled September t3. 191th I provided a eomhnstion heatetI l'orthe motor intake pipe. (hie of the objet-ts of the present invention is to improve upon the ronstrnetion and arrangement ofthe heater and intake pipeotI a hydrocarbon motor.`

Another objeet of the invention is to provide improved means for applying heat to the motor intake pipe both by means of a Combustion heater and b y the use of the hot water from the motor cylinder water jaekets.

Anotherobjeet of the invention is to form a motor intake pipe with a plurality of independent heating jackets. one of whieh is adapted to apply intense heat to the mixture, as hy a combustion heater of the type above referred t0, and the other of which applies 'less heat as by the use of the water from the cylinder jackets.

Another object of the invention is to provide a branched intake pipe with a plu ralitv of heating means at different points in the pipe.

' Another object ot' the invention is. to protide a novel and useful arrangement of carburetor and heated intake pipe in a V- type h vtlroearbon motor (ltherobjects of the invention will appear from the following description taken in eonneetion with the drawings, whieh form a part of this speeifieation, and in whieh- Figure 1 is a transverse seetion through a hvdrtu'arlnnl motor vembodying one forni nl' m v invention. eertaiu parts being shown in elevation:

l"igure is a set'tion'at right angles to Figure l taken through the motor intake pipe or header, showing :the earhuretor largel \v in elevation:

Figure 3 is a plan view of the intake pipe Serial No4 331.043.

and earbnretor shown in the other tigures; and

Figur-e4 is a detail sertional view on the line 4*--4 ot' Figures` l and Il.

llet'erring to the drawings. lt) indieates the tvlinder blot-ks ol' a h vdrmarhon motor ot' V-t \'pe vand 1l the exhaust pipes con neeted to the e vlinder hloeks. ln the lefthand e vlinder bloek tht` exhaust passage 12 isshowu as eouuuuuieating with its' exhaust pipe ll.

lai-h ol' the '(-vlinder blot-ks l() has a eylilnltl' llt'tltl lil :ttul liolli tht blocks unil heads are provided with water jaekets ll. lt will be understood that in the usual t'irenlation of water through tht` motor water jaekets the water will pass upwardly through au outlet passage l5 |u'o\ided I'or the purpose. 'lhis passage is lshown in the head ol' the left-hand r vlinder blot-k und there isa .sintilar passage at the right-hand side.

llaeh ot' the eyliluler heads is also l'ortued with an intulnpassage lt' for the mixture. these passages leading to the respeetive o vlinders through suitable inlet valves` not shown.

Arranged 4between the evliuder hloeks is a earburetor 1T. whieh may be ol' au)| suitable eonstruetion. the well known laekard ear bnretor being illustrated .in the drawing. This earburetor eonsists mainl)- of a primary air intake passage 1S. an auxiliary air intake passage 1S). and a mixture tube or passage QU in whit-h a huttertlv 'throttle valve :2l is .u'ran; fedA This valveis eontrolled b v an arm l2 and :I rod 225. al1 adjustable stop il being provided to determine the idling position ol' the throttle.

'l`he earluu'eton is supplied with a liquid fuel. sneh as gasoline. b v a lloal ehnniber 25 whieh eonneets through a tube )t'v with the earhuretor fuel nox/,le arranged below the passage 2H. but not shown in the drawing.

.\n intake passage is pro\ ided between the earhnretor outlet Lll and the intake passages lt' ol the motor vlinder hloeks. This' pa .sage is' formed. in the illustrated deriee` in an intake pipe 2T whirh is eonneeted tothe heads l otl the e vlinder hloeks as b v th( bolts and to thtl earluiretor as bv the bolts 2H. Thus the intake pipe or header T bridges :it-ross from one ovlinder bloek to the other and supports the earburetor 1T between the cylinder blocks,

lun

The intake ,has a main passage 30 which forms a continuation of the outlet passage 20 of the carburetor and is arranged vertically above it. This passage 30 bends at its upper end and forms branches 3l extending in opposite directions towards the cylinder blocks. The branches 31 are themselves bifurcated forming pairs of branches 32 which.` as shown,y bend downwadly to their outlets. These branch passages 32 communicate with the intake passages 16 above re ferred to and in a 12-cylinder'V-type motor1 such as the one herein shown, each branch passage 32 is adapted to feed three of the cylinders.

Means are rovided for heating the mixture passint irough the passages of the intake pipe. n this invention there are a pluralit of such means, each operating indepen ently of the other. One of the means comprises a combustion heater device which is shown as connected to the intake pipe at the bend where the branches 31v begin, and the other means, which is of less intensity than the first means. uses the hot water from the cylinder jackets for heating the walls of the branches 32.

The upper part of the middle of the intake pipe, above the carburetor, is formed with.

a chamber or jacket 33 which is in direct heating relation with the )assage 30 and the branches 31, and outlets irom this chamber 33 extend downwardly therefrom, as shown at 34, on opposite' sides of the passage 30. (See Figure 2). These outlets 34 lead directly into the interior of the intake pipe, that is into the passage 30, through perforated plugs 35. as shown in Figure Q.

The outlets 34 run from the lowest points of the chamber 33, and in consequence ,thereof any fuel that may condense in the chamber 33 by reason of misfiring of the s ark plug or otherwise, will immediately rain through the outlets 34 and plugs 35 and not collect in the chamber to cause trouble upon sudden closing of the throttle.

An igniter 3G for the combustion heater, which igniter is shown in the form of a spark plug, is arranged in a casting 37 bolted to the upper part of the chamber 33 as by the bolts 38. This casting is also provided with an observation window 39 opposite the spark plug 36 and itis adapted to receive the elbow 4() or other fitting for a pipe 4l which leads a combustible mixture to the fitting 3i' and chamber C53 from a small auxiliary Carburetor 42. which carburetor is shown as connected to the float chamber :Z5 hereinabove described. Said auxiliary carburetor 42 is similar to that shown in my said pending application Serial No. :523.6221 and for the purposes of this application it is sutlicieut to say that the said auxiliary carburetor receives gasoline from the fioat chamber as by a tube 43 and air from the main air intake passage 18 of the inain carburetor through a pipe 44. Some air is also supplied to the carburetor 4Q from the air chamber in the upper part oi the float chamber 25. which is open to the atmosphere as at 45. This air reaches the carburetor 42 through ports 46.

The intake pipe QT is also formed with jackets 47 which connect with outlet passages 15 formed in the heads 13 ol' the cylinder blocks so that the water from the cylinder block jackets will passrinto these intake pipe jackets 4T. At the upper parts of the jackets 47 are outlets 48 and a branched pipe 49 connects with these outlets as shown particularly in Figures Q, 3 and 4. The pipe 49 may lead to a radiator or other coolinpr device for the water and the water will then be pumped to the cylinder jackets for continuous circulation in the usual way.

In the operation of the device ilglustrated, the motor will be turned over by an electric starting motor, or otherwise. `which will cause a depression in the intake passage 30, thus bringing mixture into the passage from the main carburetor t7. This depression will also be communicated to the combustion chamber 33 and a mixture will be drawn into that chamber from the auxiliary carburetor 42. This mixture niH be ignited by the spark plug 36 and thus heat the motor intake pipe. The burnt gases from the chamber 33 will pass through the passages 34 and plugs 35 into the passage 3() and mix with and heat the mixture from the main carburetor 17. Thus there will be a preliminary heating of the mixture for the motor which will tend to volatilize any particles of liquid in the mixture and make it more easily ignited in the motor cylinder. The hot water jackets 4T, after the motor has been operated long enough to heat the water in its jackets, will supply heat to the walls of the branches 32 and thereby prevent condensation of the mixture on the inner walls of those branches.

Other forms than the one herein shown may be made without departing from the spirit or scope of this invention.

Having thus described my invention. what I claim and desire to secu-re by Letters Patent is:

1. Tn a hydrocarbon motor. the combination with an intake pipe having branches. of a combustion heater device connected to the main part of the intake pipe. and separate jacket heating means tor the branches.

2. Tn a hydrocarlmn motor` the combination with an intake pipe having a main passage and a plurality ot' branch passages. ot= a combustion heater device connected to the intake` pipe at the. main passage part. and hot water heating means connected to the branches of said intake pipe.

A hydrocarbon motor intake pipe compart and above Said throttle rising a main passage, and pairs of liranches leading from opposite sides thereof,ofa combustion heater for the main portion of the pipe, and water heating v means for the branches.

4. In a hydrocarbon motor, the eombination with an intake pipe-and a throttle valve therein, of a. combustion heater device eonnected to the upper part `of said pipe and having an outlet passage leadingr downwardly and into the pipe'below1 said upper va ve.

5. In a hydrocarbon motor, the combination with an intake pipe having a vertical passage with a bend at the top thereof. of a heater device connected to said pipe at the bend and having passages on opposite sides of said intake pipe leading downwardly Vfrom the connection of the device t0 the intake pipe and communicating with the interior of the intake pipe below said bend.

6. In a, V-type hydrocarbon motor. the

eoinbination with the two water jaeketed cylinder blocks. of a carburetor arranged between the blocks, an intake pipe eonneeted to the carburetor and having' brani-hes lead ing t0 the cylinder blocks. said intake pipe having water jackets adapted to reeeive eirculating water from the jaekets of the evlinder blocks, and a combustion heater (evice arranged at the middle part of said intake pipe.

7. In a Vtype hydrocarbon motor, the combination with the two water jaoketed cylinder blocks, of a carburetor arranged between the` blocks, an intake pipe connected to the carburetor and having branches leading to the cylinder blocks. said intake pipe having' water jaekets adapted to receive eireulating water from the jackets of the cvl inder blocks, and a combustion heater deviee eonnected to said intake pipe immediatel)v above the carburetor-oonnection thereto.

8. In a hydrocarbon motor, the combination with an intake pipe, having a throttle valve therein, of a combustion heater device eonneeted to said pipe and comprising a combustion chamber, said device having an outlet from the lowest part of said Chamber and eonnnunieatinr with the interior of the intake pipe beyond said throttle valve.

9. In a hydroearbon motor. the combination with an intake pipe having a vertical passage with a bend at the top thereof` and a throttle valve in the vertical passage. ot' a eombust ion heater device connected to said pipe at the bend and eomprising a combustion chamber, said device havingr a passage leading from the lowest point of said ehamber downwardly and into the interior of the intake pipe below the bend and above said throttle valve.

In testimony whereof I ailix my signature.

LIONEL M. WOOLSON. 

